Expansion-joint.



PATENTED MAY 21, 1907';

INVENTOR G. W. HAYDEN. EXPANSION JOINT. APPLICATION FILED DEG.9.1905.

j/iwn mzssis I r UNITEnsTAT s PATENT oFF eE.

GEORGE w. HAYDEN, oF' OAK ..PARK,. ILLINOIS, ASSIGNOR To CRANE COMPANY, OF CHICAGO; I INOIS, AooRroR 'rIoN OF ILLINOIS,

: aasam;

. Patented. May 21-, 1967.

Application filedpeoeniher ai'eo'sll'seiiain 291,070, j j

HAYDEN) r. citize :tjf the United- States; residing; at

OaksPark, the State'- 01:} Illinois, have invented eertain new and useful-Improvements in Expansion-Joints ,:ofwhich the following pension" and-",contracti f Figure 2 is'a view of theri' sulting i'rompressure in th tol-he'atf The objects of; the'invent im rotted-balanced; neglnwhicha the-forceof the liquid. ter'idin it I the'fcenter. of th jomtyand-"g ht hand end of.

" :the joint aslshown in'Figure 1. i

" I'n order to hold the telescoping parts ofthe joint in-yielding-engagemerit I preferably employ a plurality of cyl nders spaced about the periphery of one of'the telescoping memc'o-openatin bers andsecured thereto; and a p urality of separate the telescoping'members. My i11 'vention; however, is not restricted to fluid balancing means, for it is apparent that other a yielding means'might be applied;

be secured; to the sections-lofpipe between whichthe joint is to be placed 5 In orderto,

make a tightjoint the stuffing box '5 is used.

The means shown for balancing the joint ooni Isists of'a plurality of cylinders ,6 arranged at uniform intervals about the circumference of one ofthe telescoping members! -As shown,- .thesecylinders are integral with one of the members, butif desired, such cylinders may be made separate from the telescoping member and secured thereto in any suitab manalso the c'ylin ders tofprofvide an" pposition vto I v s ep'aratethe parts,", 'and' to I rovide an arrangernent -o'f. parts whereby t e;-yieldin'g=lrolding means pp l u orm y t a hs e e i n'af v ,meinbers may slide uponfleach therwit out; I g. One form "of theinv ntion'is'i llil-si tratedgin the accompanying dr win s; in: lf l f 25-. alongltudinal section through} {Having thus describ j 1 In fjpri sin two telescoping 'couplingmembers,

pistons-on the other member .1 arranged 'to e operatedby 'fluid pressure and I oppose the pressure in the pipe; tending to mitted.

' parent that "the number of the only considerationbe that the ho ding means he 'applled unifor y about the cir- 'cumference ot the joint and that the combined'are'a availablefor fluid pressure he suf properly hold the telescoping seca Theinernber 4 is provided a "with a flange 7 ,towhich flange is secure aficient to tiops; in1p ace;

pluralityfofpistonrodsj8' each carrying at its .end a piston 9. Connection 'is made to the-cylinders fromlthe pipe by means of the ports 10. The ends iof the cylinders are 'closedfby means ofheads'l 1 .and connection made from theleft'hand end of the cylinders to theatmosphere by means of the openng s 12. Each piston rod 8'is made steam tight bythe stuffing boxes '13. It will be {seen from the above construction that the holding means' by-their uniform spacing about the joint provide a balancing force whioh is applied 'synnnetrically to the telescoping parts whereby there is nobinding of such parts in their slidirg engagement.

my invention and illustrated its use, what I claim as new and desire to secure by Letters Patent, is the fol-' lowing combination an expansion joint comone 0 which has aplurality of backwardly extending rods paralleling the members and v I t tbevaried-in order to suit varying conditlons as to the size of the ipe,

meanswhreby therods may be held yieldingly in one direction and thexother coupling 'member Iin'the otherdirection such means' being of sufficient strength to counterbalancevthe tendency of thetelescoping members to separate when steam is admitted and SO arranged as to P ev nt binding of the t elscoping parts. I

Z. In combination an expansion joint comprising two flanged telescoping coupling allel to the members, and means co-operatjiing with the rods whereby the members are 3. In: combination, an expansion joint comprislng twoi telescoping coupling memniembers one of which" has a plurality of rods spaced unif r'mly-thereabout and parbers, a plurality of backwardly extending rods provided with pistons connected to one of the members, a corresponding number of fluid pressure cylinders connected to the other member and having communication with the atmosphere on the rear side of the pistons and to a source of fluid pressure on the front side whereby the tendency of the joint to expand is resisted.

4. In. combination, an expansion joint comprising two telescoping coupling members, a plurality of backwardly extending rods provided with pistons having a combined area substantially equal to the area of the coupling members "connected to one of themembers a corresponding number of fluid pressure cylinders connected to the other member and having communication with the atinosphereon'the rear side of the pistons andto a source offluid pressure. on the front side whereby the tendencyofth'e joint to expand is yieldingly resisted. 1

5. In combination an expansion joint c0mprising two telescoping members, a plurality of fluid pressure cylinders on one of the 'membershaving passages opening into the members being counter bored, cylinders mounted on this member and having passages leading to the counterbores', pistons in the cylinders and connections between the pistons and other telescoping member.

7 In combination an expansion joint comprising telescoping members, a plurality of fluid pressure cylinders on one of the parts having passages opening into the joint and a corresponding plurality of pistons connected to the other part whereby the members are held iii-telescoping engagement.

In testimony whereof I have hereunto signed my name in the presence of the two subscribed witnesses.

GEORGE W. HAYDEN.

Witnesses:

PA L CARPENTER, ALBERT GRANT MILLER. 

